UMAP vs t-SNE — practical differences.
mediumAnswer
- UMAP: faster , preserves more global structure (inter-cluster distances less-meaningful but somewhat interpretable), supports supervised / semi-supervised variants, can transform new points (t-SNE cannot).
- Both are for visualization primarily.
- UMAP has become the default for 2D projection in scRNA-seq, embeddings inspection, exploratory analysis.
Check yourself — multiple choice
- Same
- UMAP faster + preserves more global structure + supports supervised variants + transform new points; t-SNE only fits, seed-sensitive
- Random
- t-SNE always better
UMAP: faster, more global structure, transforms new points, supervised variants.
#dimensionality-reduction#visualization
Practise Unsupervised Learning
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